Linear stepper motor which named Nema 14 external linear actuator, the motor part is 34mm 1.8 degree 1A Nema 14 stepper motor. It was integrated with 200mm Tr6.35*2 threaded rod and a POM screw nut move along the threaded rod.
Electrical Specification
Manufacturer Part Number: 14HY0007-200T635*2
Motor Type: External Linear Stepper
Step Angle: 1.8 deg
Holding Torque: 26Ncm(36.8oz.in)
Rated Current/phase: 1.25A
Phase Resistance: 30ohms
Voltage: 2.3V
Inductance: 37mH ± 20%(1KHz)
Physical Specification
Frame Size: 35x 35mm
Body Length: 34mm
Lead Screw Length: 200m
Lead Screw Diameter: 6.35mm
Lead /Step: 0.01mm
Lead/Revolution: 2mm 
Number of Leads: 4
Weight : 300g